Michigan Algorithm Decoder
| Paradigm | Imperative |
|---|---|
| Developer | Galler, Arden, and Graham |
| First appeared | 1959 |
| OS | UMES, MTS, CTSS, others |
| Major implementations | |
| IBM 704, IBM 7090, UNIVAC 1108, Philco 210-211, IBM S/360, and IBM S/370 | |
| Dialects | |
| MAD, MAD/I, GOM | |
| Influenced by | |
| IAL, ALGOL 58 | |
MAD (Michigan Algorithm Decoder) is a programming language and compiler for the IBM 704 and later the IBM 709, IBM 7090, IBM 7040, UNIVAC 1107, UNIVAC 1108, Philco 210-211, and eventually the IBM S/370 mainframe computers. Developed in 1959 at the University of Michigan by Bernard Galler, Bruce Arden and Robert M. Graham, MAD is a variant of the ALGOL language. It was widely used to teach programming at colleges and universities during the 1960s and played a minor role in the development of CTSS, Multics, and the Michigan Terminal System computer operating systems.
The archives at the Bentley Historical Library of the University of Michigan contain reference materials on the development of MAD and MAD/I, including three linear feet of printouts with hand-written notations and original printed manuals.
There are three MAD compilers:
While MAD was motivated by ALGOL 58, it does not resemble ALGOL 58 in any significant way.
Programs written in MAD included MAIL,RUNOFF, one of the first text processing systems, and several other utilities all under Compatible Time-Sharing System(CTSS). Work was done on a design for a MAD compiler for Multics, but it was never implemented.
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